OK, sorry for the delay. We just completed a move and today I took the divergent out for a couple flights. Is there enough strength to fly without the struts? As per the original design I would say no. Could one be built with a slightly longer wing tube on the upper wing and a beefy dihedral brace on the bottom wing, I think so. You could also eliminate the wing fences if you prefer the clean wing look. How much if any difference in flight performance, your guess is as good as mine.
